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@ -18,62 +18,145 @@ limitations under the License. */
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#include <stdexcept>
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#include <vector>
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#include "paddle/fluid/framework/dim.h"
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#include "paddle/fluid/platform/enforce.h"
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#include "paddle/fluid/platform/variant.h"
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namespace paddle {
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namespace framework {
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#define PADDLE_VISIT_DDIM_BASE(rank, callback) \
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case (rank): { \
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constexpr auto kRank = (rank); \
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return (callback); \
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}
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#define PADDLE_VISIT_DDIM(rank, callback) \
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switch (rank) { \
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PADDLE_VISIT_DDIM_BASE(0, callback); \
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PADDLE_VISIT_DDIM_BASE(1, callback); \
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PADDLE_VISIT_DDIM_BASE(2, callback); \
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PADDLE_VISIT_DDIM_BASE(3, callback); \
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PADDLE_VISIT_DDIM_BASE(4, callback); \
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PADDLE_VISIT_DDIM_BASE(5, callback); \
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PADDLE_VISIT_DDIM_BASE(6, callback); \
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PADDLE_VISIT_DDIM_BASE(7, callback); \
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PADDLE_VISIT_DDIM_BASE(8, callback); \
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PADDLE_VISIT_DDIM_BASE(9, callback); \
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default: \
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PADDLE_THROW("Invalid rank %d", rank); \
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}
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template <typename T1, typename T2>
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inline void dynamic_dim_assign(const T1* in, T2* out, int n) {
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PADDLE_VISIT_DDIM(n, (static_dim_assign<kRank, T1, T2>(in, out)));
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}
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/**
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* \brief A dynamically sized dimension.
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*
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* The number of dimensions must be between [1, 9].
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*/
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struct DDim {
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typedef boost::variant<Dim<0>, Dim<1>, Dim<2>, Dim<3>, Dim<4>, Dim<5>, Dim<6>,
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Dim<7>, Dim<8>, Dim<9>>
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DDimVar;
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DDimVar var;
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class DDim {
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public:
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constexpr static int kMaxRank = 9;
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DDim() : rank_(1) { dim_[0] = 0; }
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DDim() : var(Dim<1>()) {}
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DDim(const DDim& ddim) : dim_() { CopyFrom(ddim); }
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DDim(const int* d, int n) : rank_(n) {
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dynamic_dim_assign(d, dim_.GetMutable(), n);
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}
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DDim(const int64_t* d, int n) : rank_(n) {
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dynamic_dim_assign(d, dim_.GetMutable(), n);
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}
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template <int D>
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explicit DDim(const Dim<D>& in) : var(in) {}
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/*implicit*/ DDim(const Dim<D>& in) : rank_(D) { // NOLINT
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UnsafeCast<D>() = in;
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}
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/*implicit*/ DDim(std::initializer_list<int64_t> init_list)
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: DDim(init_list.begin(), init_list.size()) {}
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/*implicit*/ DDim(std::initializer_list<int64_t> init_list);
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inline DDim& operator=(const DDim& ddim) { return CopyFrom(ddim); }
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template <int D>
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DDim& operator=(const Dim<D>& in) {
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var = in;
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inline DDim& operator=(const Dim<D>& dim) {
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rank_ = D;
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UnsafeCast<D>() = dim;
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return *this;
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}
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int64_t& operator[](int idx);
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int64_t operator[](int idx) const;
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inline int64_t& operator[](int idx) { return dim_[idx]; }
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inline int64_t operator[](int idx) const { return dim_[idx]; }
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inline int64_t& at(int idx) {
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PADDLE_ENFORCE(idx >= 0 && idx < rank_, "Invalid idx %d", idx);
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return dim_[idx];
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}
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inline int64_t at(int idx) const {
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PADDLE_ENFORCE(idx >= 0 && idx < rank_, "Invalid idx %d", idx);
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return dim_[idx];
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}
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template <typename Visitor>
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typename Visitor::result_type apply_visitor(Visitor& visitor) {
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return var.apply_visitor(visitor);
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typename std::result_of<Visitor(Dim<0>&)>::type apply_visitor(
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Visitor&& visitor) {
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PADDLE_VISIT_DDIM(rank_, visitor(UnsafeCast<kRank>()));
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}
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template <typename Visitor>
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typename Visitor::result_type apply_visitor(Visitor& visitor) const {
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return var.apply_visitor(visitor);
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typename std::result_of<Visitor(const Dim<0>&)>::type apply_visitor(
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Visitor&& visitor) const {
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PADDLE_VISIT_DDIM(rank_, visitor(UnsafeCast<kRank>()));
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}
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DDimVar getVar() { return var; }
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bool operator==(const DDim& d) const;
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bool operator!=(const DDim& d) const;
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DDim operator+(const DDim& d) const;
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bool operator==(DDim d) const;
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DDim operator*(const DDim& d) const;
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bool operator!=(DDim d) const;
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inline const int64_t* Get() const { return dim_.Get(); }
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DDim operator+(DDim d) const;
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inline int64_t* GetMutable() { return dim_.GetMutable(); }
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DDim operator*(DDim d) const;
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inline int size() const { return rank_; }
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private:
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template <int D>
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inline Dim<D>& UnsafeCast() {
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static_assert(D >= 0 && D <= kMaxRank, "Invalid rank");
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auto* p = static_cast<void*>(&dim_);
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return *reinterpret_cast<Dim<D>*>(p);
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}
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template <int D>
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inline const Dim<D>& UnsafeCast() const {
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static_assert(D >= 0 && D <= kMaxRank, "Invalid rank");
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auto* p = static_cast<const void*>(&dim_);
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return *reinterpret_cast<const Dim<D>*>(p);
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}
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int size() const;
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inline DDim& CopyFrom(const DDim& ddim) {
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PADDLE_VISIT_DDIM(ddim.rank_, (*this = ddim.UnsafeCast<kRank>()));
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}
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friend DDim stride(const DDim& ddim);
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friend DDim stride_numel(const DDim& ddim);
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private:
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Dim<kMaxRank> dim_;
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int rank_;
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};
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#undef PADDLE_VISIT_DDIM_BASE
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#undef PADDLE_VISIT_DDIM
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/**
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* \brief Make a DDim from std::vector<int64_t>
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*
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@ -92,7 +175,7 @@ DDim make_ddim(const std::vector<int>& dims);
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DDim make_ddim(std::initializer_list<int64_t> dims);
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int64_t get(const DDim& dim, int idx);
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void set(DDim& dim, int idx, int val);
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void set(DDim& dim, int idx, int val); // NOLINT
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std::vector<int64_t> vectorize(const DDim& ddim);
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std::vector<int> vectorize2int(const DDim& ddim);
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@ -129,12 +212,3 @@ DDim stride(const DDim& ddim);
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DDim stride_numel(const DDim& ddim);
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} // namespace framework
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} // namespace paddle
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namespace boost {
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template <typename T>
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T get(const paddle::framework::DDim& in) {
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return boost::get<T>(in.var);
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}
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} // namespace boost
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minqiyang
6 years ago